Graphite vs. Hexagonal Boron Nitride
Both graphite and hexagonal boron nitride are non-oxide engineering ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is graphite and the bottom bar is hexagonal boron nitride.
Metric UnitsUS Customary Units
Material Properties
| Compressive (Crushing) Strength, MPa | 90 | |
| 21 to 250 |
| Density, g/cm3 | 1.8 | |
| 1.9 to 2.1 |
| Elastic (Young's, Tensile) Modulus, GPa | 21 | |
| 14 to 60 |
| Flexural Strength, MPa | 80 | |
| 18 to 140 |
| Maximum Temperature: Corrosion, °C | 180 | |
| 1140 to 2800 |
| Maximum Temperature: Mechanical, °C | 220 | |
| 1030 to 2350 |
| Stiffness to Weight: Axial, points | 6.7 | |
| 4.1 to 18 |
| Stiffness to Weight: Bending, points | 53 | |
| 42 to 69 |
| Thermal Conductivity, W/m-K | 6.0 | |
| 29 to 96 |
| Thermal Expansion, µm/m-K | 4.9 | |
| 0.54 to 18 |